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1) ![frac{1}{3} x = -5 frac{1}{3} x = -5](https://tex.z-dn.net/?f=+frac%7B1%7D%7B3%7D+x+%3D+-5)
x = -5 * 3 = -15
2) 35(x = 1) = -14 (исправите знаки, допишу)
3) -2(x + 1) - (4 - x) = 12
-2x - 2 - 4 + x = 12
-x = 12 + 2 + 4
-x = 18
x = -18
4) 1,2(3 - x) + (3 - 4x) = 5,2
3.6 - 1.2x + 3 - 4x = 5.2
-5.2x = -1.4
x = 14/52 = 7/26
5) -1.7(x + 2) - 0.3x = 2(2 - x)
-1.7x - 3.4 - 0.3x = 4 - 2x
-3.4 = 4 неверно, нет решений
6)![frac{5}{9} x - frac{7}{4} x + frac{17}{18} x = - frac{1}{4} frac{5}{9} x - frac{7}{4} x + frac{17}{18} x = - frac{1}{4}](https://tex.z-dn.net/?f=+frac%7B5%7D%7B9%7D+x+-++frac%7B7%7D%7B4%7D+x+%2B++frac%7B17%7D%7B18%7D+x+%3D+-+frac%7B1%7D%7B4%7D+)
![frac{20x - 63x + 34x}{36} = - frac{1}{4} frac{20x - 63x + 34x}{36} = - frac{1}{4}](https://tex.z-dn.net/?f=+frac%7B20x+-+63x+%2B+34x%7D%7B36%7D+%3D+-+frac%7B1%7D%7B4%7D+)
![frac{-9x}{36} = - frac{1}{4} frac{-9x}{36} = - frac{1}{4}](https://tex.z-dn.net/?f=+frac%7B-9x%7D%7B36%7D+%3D+-+frac%7B1%7D%7B4%7D+)
![frac{x}{4} = frac{1}{4} frac{x}{4} = frac{1}{4}](https://tex.z-dn.net/?f=+frac%7Bx%7D%7B4%7D+%3D++frac%7B1%7D%7B4%7D+)
x = 1
7)![frac{2x - 3}{3} = -5 frac{2x - 3}{3} = -5](https://tex.z-dn.net/?f=+frac%7B2x+-+3%7D%7B3%7D+%3D+-5)
2x - 3 = -15
2x = -12
x = -6
8)![frac{x + 7}{3} = frac{2x + 3}{5} frac{x + 7}{3} = frac{2x + 3}{5}](https://tex.z-dn.net/?f=+frac%7Bx+%2B+7%7D%7B3%7D+%3D++frac%7B2x+%2B+3%7D%7B5%7D+)
5(x + 7) = 3(2x + 3)
5x + 35 = 6x + 9
-x = -26
x = 26
9) |2x - 3| = 11
2x - 3 = 11
2x - 3 = -11
2x = 14
2x = -8
x = 7
x = -4
x = -5 * 3 = -15
2) 35(x = 1) = -14 (исправите знаки, допишу)
3) -2(x + 1) - (4 - x) = 12
-2x - 2 - 4 + x = 12
-x = 12 + 2 + 4
-x = 18
x = -18
4) 1,2(3 - x) + (3 - 4x) = 5,2
3.6 - 1.2x + 3 - 4x = 5.2
-5.2x = -1.4
x = 14/52 = 7/26
5) -1.7(x + 2) - 0.3x = 2(2 - x)
-1.7x - 3.4 - 0.3x = 4 - 2x
-3.4 = 4 неверно, нет решений
6)
x = 1
7)
2x - 3 = -15
2x = -12
x = -6
8)
5(x + 7) = 3(2x + 3)
5x + 35 = 6x + 9
-x = -26
x = 26
9) |2x - 3| = 11
2x - 3 = 11
2x - 3 = -11
2x = 14
2x = -8
x = 7
x = -4
Ответ дал:
0
погоди, добавилось не все, сейчас исправлю
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